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The group of radio stations in this research consists of national-range networks, once it would be impossible to include the numerous regional and local stations that appear in the preferences of a more restrict audience. The 12 listed networks are of three types of content: those mainly focused on music, entertainment shows and humor, but that also broadcast news; those mainly focused on news and variety shows, but that also broadcast musical programming; and the religious ones (a total of three), that broadcast religious shows, besides news, entertainment and musical programming produced from a religious perspective.

In order to select these networks, we crossed data from ANATEL (Spectrum-E: Channels, 2017) on the number of stations and territorial reach of the radio networks, from the Índice de Prestígio de Marca (‘Brand Prestige Index’ - IPM) by Meio & Mensagem and the data on radio consumption habits (grouped by network) from Pesquisa Brasileira de Mídia (2016). Similar to the TV networks, the national radio networks reach several Brazilian States through a network of affiliates.

Radio Database

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